Large-scale ethanol fermentation through pipeline delivery of biomass |
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Authors: | Amit Kumar Jay B Cameron Peter C Flynn |
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Institution: | (1) Department of Mechanical Engineering, University of Alberta, T6G 2G8 Edmonton, Alberta, Canada |
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Abstract: | Issues of traffic congestion and community acceptance limit the size of biomass-processing plants based on truck delivery
to about 2 million (M) dry t/yr or less. In this study, the cost of ethanol from an ethanol fermentation plant processing
2 M dry t/yr of corn stover supplied by truck is compared with that of larger plants in the range of 4–38 M dry t/yr supplied
by a combination of trucks plus pipelines. For corn stover, a biomass source with a low yield per gross hectare, the cost
of ethanol from larger plants is always higher. For wood chips from the boreal forest, a biomass source with a relatively
high yield per gross hectare, a plant processing 14–38 M dry t/yr produces ethanol at a 13% reduction in cost compared with
a plant producing 2 M dry t/yr supplied by truck. Processing of value-added products, such as chemicals from lignin, would
be enabled by larger-scale plants. |
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Keywords: | Ethanol fermentation pipeline delivery wood chips corn stover economies of scale |
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